- Physical Sciences
a measure of the resistance of a fluid to flow.
a molecule that is so big that we can see it, e.g. a diamond, a salt crystal and a piece of...
the theory of acids and bases which defines an acid as a proton donor and a base as a hydroxide...
electromagnetic waves, similar to X-rays, but with a much shorter wavelength.
contains an unpaired electron on a carbon atom bonded to only one other carbon atom.